89448281 has 4 divisors (see below), whose sum is σ = 96328932. Its totient is φ = 82567632.

The previous prime is 89448253. The next prime is 89448313. The reversal of 89448281 is 18284498.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52128400 + 37319881 = 7220^2 + 6109^2 .

It is a cyclic number.

It is not a de Polignac number, because 89448281 - 2⁶ = 89448217 is a prime.

It is a super-2 number, since 2×89448281² = 16001989947709922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89448251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3440306 + ... + 3440331.

It is an arithmetic number, because the mean of its divisors is an integer number (24082233).

Almost surely, 2^89448281 is an apocalyptic number.

It is an amenable number.

89448281 is a deficient number, since it is larger than the sum of its proper divisors (6880651).

89448281 is a wasteful number, since it uses less digits than its factorization.

89448281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6880650.

The product of its digits is 147456, while the sum is 44.

The square root of 89448281 is about 9457.7101351226. The cubic root of 89448281 is about 447.2228651412. Note that the first 3 decimals are identical.

The spelling of 89448281 in words is "eighty-nine million, four hundred forty-eight thousand, two hundred eighty-one".